View Compilation Error

0_0_36579745_32628.cpp: In function 'void solve()':
0_0_36579745_32628.cpp:48:5: error: 'gp_hash_table' is not a member of '__gnu_pbds'
     __gnu_pbds::gp_hash_table<ll, int> mp;
     ^
0_0_36579745_32628.cpp:48:33: error: expected primary-expression before ',' token
     __gnu_pbds::gp_hash_table<ll, int> mp;
                                 ^
0_0_36579745_32628.cpp:48:35: error: expected primary-expression before 'int'
     __gnu_pbds::gp_hash_table<ll, int> mp;
                                   ^
0_0_36579745_32628.cpp:71:17: error: 'mp' was not declared in this scope
                 mp[qwq]++;
                 ^
0_0_36579745_32628.cpp:74:13: error: 'mp' was not declared in this scope
             mp.clear();
             ^